Setting the Clock
To set the time and date for the radio with CD, DVD, and USB Port:
1. Turn the ignition key to ACC/ACCESSORY or ON/RUN, then press
to turn the radio on.
2. Press
to display HR, MIN, MM, DD, YYYY (hour, minute, month, day, and year).
3. Press the pushbutton located under any one of the labels to be changed.
4. To increase or decrease the time or date, turn
clockwise or counterclockwise.
For detailed instructions on setting the clock for the vehicle's specific audio system, see Clock on page 5‑8.
See also:
When to Check and Change Automatic Transmission Fluid
It is usually not necessary to check the transmission fluid level.
The only reason for fluid loss is a transmission leak or overheated transmission. If a small leak is suspected, then use the followi ...
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehic ...
Three-Way Calling
Three-way calling must be supported on the cell phone and enabled by the wireless
service carrier.
1. While on a call, press .
2. Say “Three&-way call.”
3. Use the dial or call command to ...





